32 results about "Fissure sealant" patented technology

A device and method for applying a fibrinogen-based tissue sealant to seamlessly connect human or animal tissues or organ parts, to seal wounds, stop bleeding and the like by mixing fibrin or fibrinogen with blood clot-promoting coagulation factors are disclosed. The device includes two cylindrical compartments for separately containing the separate fluid components of the sealant preparation, which are simultaneously displaced from the respective compartments by plungers commonly depressable with the same effective strokes. The plungers may be depressed directly or by a common mechanism (e.g., rack and pinion) for accurately controlling the rate of dispensing fluid. The cylindrical compartments are of the same or different cross-sectional area and are arranged either concentrically or side-by-side. The device further includes structure for merging the two fluid components within an outer sleeve housing an inner needle. The sleeve and needle contain conduits for the flow of the two fluid sealant components as they are expressed from the respective compartments. Also disclosed are a convenient device for filling the two compartments, structure for mixing the fluid components, and for atomizing the effluent sealant fluid stream (i.e., spraying).

ClotFoam is an hemostatic agent designed for non-compressible hemorrhage. It can be applied outside the operating room through a mixing needle and/or a spray injection method following abdominal, chest, extremities or other intracavitary severe trauma to promote hemostasis, or it can be used in the operating room for laparoscopic procedures or other surgical procedures in which compression is not possible or recommended. Its crosslinking technology generates an adhesive three-dimensional polymeric network or scaffold that carries a fibrin sealant required for hemostasis. When mixed, Clotfoam produces a foam that spreads throughout a body cavity reaching the lacerated tissue to seal tissue and promote the coagulation cascade. The viscoelastic attachment properties of the foam as well as the rapid formation of a fibrin clot that ensure that the sealant remains at the site of application without being washed away by blood or displaced by movement of the target tissue .

A dental polymerizable composition comprising (a) a fluorine compound comprising a chain polymer having a main chain comprising a monomer unit having a hydrophilic group, and terminal groups comprising a fluoroalkyl group at each of both ends of the main chain; (b) a polymerizable monomer; and (c) a polymerization initiator. The dental polymerizable composition can be suitably used, for example, for dental composite resins, such as dental composite filler materials, crowning materials, and bonding materials; dental adhesive agents, such as teeth-straightening adhesive agents, cavity-coating adhesive agents, and tooth fissure sealing materials; denture base materials, denture base mucosal adjusting materials, fissure sealants, coating agents applied to tooth surface or dental prosthetic, surface glazes, and the like, and especially for various coating applications, for example, a fissure sealant, a coating agent to tooth surface or dental prosthetic, surface stains or a surface glaze, a hypersensitive inhibitor, a dental manicure, or the like.

A product and method for sealing cracks in pavements, roofs, or the like utilizes a can containing a tar sealant. The tar sealant is a solid at room temperature and assumes a fluid state pourable from the can when the tar sealant is heated in the can to a temperature above the melting temperature of the tar sealant. A spout and handle that can withstand the heat are fitted to the can for pouring the melted tar sealant in a fluid state from the can into a crack to be sealed.

The invention discloses a polymerizable quaternary ammonium salt modified anti-microbial pit and fissure sealant and a preparation method thereof and belongs to the technical field of medical materials for the oral cavity. The polymerizable quaternary ammonium salt modified anti-microbial pit and fissure sealant is prepared from 40%-80% of resin monomer matrixes, 15%-40% of a reactive diluent, 3%-25% of functional monomers, 0.5%-10% of polymerizable quaternary ammonium salt monomers, 1%-20% of nanoscale filler, 0.5%-3% of NaF, 0.05%-3% of a photosensitive initiation mixture, 0.001%-0.05% of a polymerization inhibitor and 0.3%-5% of pigment. The pit and fissure sealant has good biological safety, is short in curing time at the temperature of the oral cavity and long in operation time and has an effective and lasting antibacterial effect; the preparation method is simple to operate, environment-friendly and suitable for industrial large-scale production.

The invention relates to a pit and fissure sealant for dental department. The pit and fissure sealant comprises the following two compositions in percentage by weight: 5%-30% of superfine structured packing with an average particle size of 0.05-0.4mu m, and 95%-70% of polymerizable acrylate monomer containing a photo-initiating system, wherein the superfine structured packing is superfine silica structured powder packing which is treated by fluoride. The pit and fissure sealant for dental department is high in hardness, good in wear resistance, high in compressive strength and bending strength, and low in manufacturing cost. The superfine silica structured powder packing which is treated by fluoride can continuously release fluorine ions.

Polymerizable denial materials having an antimicrobial effect are provided. These include dental materials such as protective dental varnishes, composites, compomers, fissure sealants, dental cements, dental bonding agents and similar materials, and containing 2,4,4'-trichloro-2'-hydroxydiphenyl ether.

A meltable crack sealant package that includes a polymeric container and a crack sealant material contained therein. The polymeric container includes a bottom portion including a rigid base and an upwardly extending rigid sidewall that terminates in and define an opening. The rigid base and upwardly extending rigid sidewall cooperate to define a reservoir. A rigid lid portion operatively engages with the bottom portion to close off the opening and thereby seal the crack sealant material within the reservoir in a watertight manner. Methods of making and using the meltable crack sealant package are also disclosed.

The dental isolator of the present invention is a one-time use dental device which is easy to use as well as easily customizable for the intended patient. The present invention can be used in the preparation and application of a pit and fissure sealant procedure. The dental isolator of the present invention can be adjusted and customized to tailor fit the mouth of the patient. The dental isolator of the present invention is positively retained within the patient's mouth and protects the isolated teeth from moisture on distal, lingual and facial exposure points.

ClotFoam is a sealant and hemostatic agent for use in cases of non-compressible hemorrhage for moderate to severe bleeding. It can be applied in the operating room through laparoscopic ports, or directly over lacerated tissue in laparotomy procedures or outside the operating room through a mixing needle and/or a spray injection method following intracavitary severe trauma or surgery. Its crosslinking technology generates an adhesive scaffold that carries a fibrin sealant required for hemostasis. Clotfoam produces a foam that spreads throughout a body cavity reaching the lacerated tissue to seal tissue and promote the coagulation cascade. The composition is biocompatible and non-inflammatory.

The invention uses fibrin monomer polymerized by a change of pH as active sealing component. The viscoelastic properties of the foam as well as the rapid formation of a fibrin clot ensure that the sealant remains at the site of application without being washed away by blood.

The invention belongs to the technical field of oral clinic, and discloses a synthesis and detection method of a modified novel antibacterial resin type pit and fissure sealing agent, which comprises the following steps: preparing the pit and fissure sealing agent, and screening the dosage relation; carrying out performance detection on the prepared pit and fissure sealing agent, grouping according to the mass fraction of DMADDM, and respectively detecting the photocuring depth, cytotoxicity, surface roughness and microhardness of the pit and fissure sealing agent, with five samples in each group; carrying out antibacterial performance detection before and after biological aging; and carrying out micro-leakage detection after biological aging. The modified resin sealant material can effectively resist the aging effect of an oral biofilm, has a long-acting and sustainable antibacterial effect while maintaining excellent mechanical properties, and makes up for the deficiency of the long-acting anti-caries performance of the existing pit and fissure sealant. The quaternary ammonium salt modified pit and fissure sealing agent developed by the invention has a long-acting antibacterial function, can effectively improve the success rate of caries prevention, and is expected to become a clinically ideal novel pit and fissure sealing material.

The invention relates to a manufacturing method of a mildew-free sealant. The manufacturing method comprises the following steps: adding 100 parts of hydroxyl-terminated polysiloxane and 5 to 20 partsof gas-phase silicon dioxide into a planetary stirring machine to obtain a mixture and stirring the mixture for 1 to 5 hours; adding 1 to 5 parts of perfluoro (heptadecafluoro) decyl-trimethoxy silane, 0.01 to 0.1 part of 1,3-dicyclohexyl-1,1,3,3-tetra[(norborene-2-yl) ethyl dimethylsiloxy] disiloxane, 1 to 5 parts of poly-4-methyl-1-pentene and 0.5 to 2 parts of bis(acetylacetone) (ethoxy ethoxypropyl) titanate; performing stirring for 1 to 5 hours to obtain the mildew-free sealant.

The invention provides a nutrition supplementing and tooth-decay-resistant complexing agent and a preparation method thereof. The nutrition supplementing and tooth-decay-resistant complexing agent is prepared from acidic calcium phosphate monohydrate compounds and basic calcium oxide compounds; and the nutrition supplementing and tooth-decay-resistant complexing agent is single stable chewing gum, candy, cake, chewable tablets or buccal tablets. The released calcium and phosphate ions can realize remineralization and decayed tooth repair; meanwhile, the growth of oral bacteria and the formation of a dental plaque biomembrane can be inhibited; the oral cavity acidity is neutralized; and the calcium is provided as the nutrition supplement. The nutrition supplementing and tooth-decay-resistant complexing agent can be used as an effective ingredient to be added to other external carrying tools, including toothpaste, dental paint, tooth pasting films, mouthwash, gel, fissure sealants, dental bonding agents and composite resin.

The invention provides a pit and fissure sealant for permeating and sealing pits and fissures on an occlusal surface of teeth and application of the pit and fissure sealant. The pit and fissure sealant comprises the following raw materials in parts by weight: 1-15 parts of polyethylene glycol, 1-20 parts of protein, 1-10 parts of a disulfide bond reducing agent or a disulfide bond oxidizing agent, 1-3 parts of calcium chloride and 2-20 parts of a pH regulator. The nest and fissure sealing agent can be prepared by physically mixing protein and polyethylene glycol through a one-pot method, and is simple in preparation, mild in reaction condition and good in controllability.